07
Electric agitating equipment, agitating machines, agitating
tools for connection to the aforesaid agitating equipment
and agitating machines, in particular hyperboloid agitating
bodies and propellers, submersible motors for the aforesaid
agitating bodies, waste water and slurry pumps, circulating
pumps; lifting apparatus, cranes
11
Ventilating apparatus, in particular gas-feed tubes, air
distribution apparatus for connecting gas-feed tubes,
hold-down devices for gas-feed tubes; water purifying
apparatus, water supply apparatus, equipment and apparatus
for waste water purifying and clarifying installations,
waste water purifying and clarifying installations, and
installations for mixing and aerating waste water and
residual sludge; installations for conducting biological
waste water purification process (included in this class)
42
Engineering, technical planning (engineering), building and
construction drafting, technical consultancy, all the
aforesaid services in the field of dewatering, water
treatment, waste water and clarified sludge treatment;
computer programming in the field of dewatering, water
treatment, waste water and clarified sludge treatment
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